Top Quantum Computing Companies (91)

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re building a resilient economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help...

HRL Laboratories, an IBM company, pioneers the next frontiers of physical and information science. Delivering transformative technologies in automotive, aerospace and defense, HRL advances the critical missions of its customers. As a private company owned by IBM, HRL is a source of innovations that advance the state of the art in profound and far-reaching ways.

Monarch Quantum is a U.S.-based quantum photonics company that designs and manufactures integrated photonics systems, known as Quantum Light Engines™, for quantum computing, sensing, and communications.

Qutwo is a European AI lab focused on creating next-generation AI for a quantum world. The company develops enterprise software and the Qutwo OS, an orchestration layer that bridges classical and quantum computing. By simulating quantum workloads and offering hybrid solutions, Qutwo helps enterprises solve complex optimization and simulation problems and prepare for the transition to full quantum advantage.

We are pioneering an approach to quantum computing that allows users to write programs in classical languages that can be compiled and run on conventional or quantum computers, without any knowledge in quantum computing. Whether you are a software developer interested in quantum computing, or an expert who is highly proficient in quantum information theory, you'll be able to gain...

AOSense, Inc. is a leading developer and manufacturer of quantum technologies. We build systems and sub-components including atom optic devices for precision navigation, gravity measurement, timekeeping and quantum computing. Our capabilities include gyroscopes, accelerometers, inertial measurement units (IMUs), gravimeters, gravity gradiometers, and atomic frequency standards. A variety of quantum technologies such as computing, magnetometry and quantum communication benefit from our...

Quantum computers are a revolutionizing technology — they have the potential to transform business, society, and the planet for the better, and IonQ is at the forefront of this revolution. After over 25 years of academic research, IonQ was founded in 2015 by Chris Monroe and Jungsang Kim with $2 million in seed funding from New Enterprise Associates, a license to...

Quantum Circuits, Inc. (QCI) is developing a full-stack quantum computing platform using superconducting devices and a modular, robust, and scalable architecture. QCI's mission is to build the first truly useful quantum computers. Our novel approach to building quantum computers is based on technology developed over a decade of research at Yale University's world-class quantum labs. Our machines have built-in error...

Qubit Pharmaceuticals is a physics-driven drug discovery company developing lifesaving treatments through quantum-accurate computational methods. It combines advanced simulation software, hybrid quantum-classical computing, and AI-enhanced medicinal chemistry to design novel drug candidates atom by atom. Its platform targets challenging diseases by optimizing candidate efficacy, specificity, and safety, aiming to accelerate the development of innovative therapies for patients with serious unmet...

Atos is a global leader in digital transformation with 110,000 employees and annual revenue of € 12 billion. European number one in Cybersecurity, Cloud and High-Performance Computing, the Group provides tailored end-to-end solutions for all industries in 73 countries. Pioneer in decarbonization services and products, Atos is committed to a secure and decarbonized digital for its clients. Atos operates under...

Our mission is to deliver the world’s best tools to solve the toughest quantum challenges, offering solutions that are more accessible, reliable, and affordable while building a work force and supply chain that advance U.S. quantum leadership. We listen to our customers, understand their needs, and employ cutting-edge science and human-centered engineering to deliver industry-leading performance and unrivaled user experience.

QuantWare is a leading provider of quantum hardware and creator of the VIO Quantum Processor Unit (QPU) scaling technology. Leading the Quantum Open Architecture paradigm, QuantWare powers the quantum computers of customers in 20 countries, spread over four continents. QuantWare's VIO provides a scaling platform to unlock the fastest path towards systems with more than 1 million qubits. VIO is...

QAI Ventures is a global venture capital firm and ecosystem builder specializing in transformative technologies across the advanced computing value chain, from quantum hardware and sensing to advanced AI. It provides early-stage capital and strategic support to startups, focusing on pure quantum technology and AI-integrated solutions, particularly within the energy, life sciences, and finance sectors.

FiveRivers Technologies provides enterprise-class solutions and software in areas like AI, autonomy, robotics, quantum cryptography, AR/VR, IoT, and cybersecurity, and has been pioneering virtualization and systems management technology since 2003.

IQM builds superconducting full‑stack quantum computers and cloud services for research institutions, HPC centers, enterprises and national labs. The company delivers on‑premises systems and managed cloud access, focusing on scalable, high‑fidelity qubit architectures and full‑stack control to accelerate real‑world applications and research in science, industry and technology.

Zapata Quantum is a publicly traded quantum software company focused on making quantum computing commercially useful. It develops software and quantum algorithms for applications across cryptography, pharmaceuticals, finance, materials discovery, defense, and other complex computational fields. The company translates quantum research into deployable applications and contributes to benchmarking and infrastructure efforts intended to accelerate practical quantum computing adoption.

Fermi National Accelerator Laboratory (Fermilab) is America's particle physics and accelerator laboratory. Its mission is to serve as a world leader in neutrino and particle physics, pushing the frontiers of foundational discovery, opening new avenues of science, and transforming results into technologies that benefit society. The lab designs, builds, and operates world-leading accelerators and detectors to solve the mysteries of...

Applied Quantum Computing for the Benefit of Humanity Follow us on X: https://x.com/projecteleven

eleQtron is a German quantum-computing hardware company founded as a University of Siegen spin-off. It develops and operates freely programmable, scalable quantum computers based on stored ions, using its MAGIC (Magnetic Gradient Induced Coupling) technology to control qubits with miniaturized microwave systems. The company aims to bring quantum computing from research into practical commercial applications and provide computing time to...

Superlinear Computing is a Palo Alto-based quantum research and infrastructure company with a quantum lab in Chicago. It designs, deploys, and operates on-premises superconducting quantum processing unit systems, applies machine learning to characterize quantum-system behavior, and turns those findings into specialized hardware products. The company provides researchers, enterprises, and government partners access to quantum capabilities and builds the infrastructure needed...